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// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
// Copyright (c) 2011, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// ---
// Author: Craig Silverstein <opensource@google.com>
//
// Used on systems that don't have their own definition of
// malloc/new/etc. (Typically this will be a windows msvcrt.dll that
// has been edited to remove the definitions.) We can just define our
// own as normal functions.
//
// This should also work on systems were all the malloc routines are
// defined as weak symbols, and there's no support for aliasing.
#ifndef TCMALLOC_LIBC_OVERRIDE_REDEFINE_H_
#define TCMALLOC_LIBC_OVERRIDE_REDEFINE_H_
#ifdef HAVE_SYS_CDEFS_H
#include <sys/cdefs.h> // for __THROW
#endif
#ifndef __THROW // I guess we're not on a glibc-like system
# define __THROW // __THROW is just an optimization, so ok to make it ""
#endif
void* operator new(size_t size) { return tc_new(size); }
void operator delete(void* p) __THROW { tc_delete(p); }
void* operator new[](size_t size) { return tc_newarray(size); }
void operator delete[](void* p) __THROW { tc_deletearray(p); }
void* operator new(size_t size, const std::nothrow_t& nt) __THROW {
return tc_new_nothrow(size, nt);
}
void* operator new[](size_t size, const std::nothrow_t& nt) __THROW {
return tc_newarray_nothrow(size, nt);
}
void operator delete(void* ptr, const std::nothrow_t& nt) __THROW {
return tc_delete_nothrow(ptr, nt);
}
void operator delete[](void* ptr, const std::nothrow_t& nt) __THROW {
return tc_deletearray_nothrow(ptr, nt);
}
#ifdef ENABLE_SIZED_DELETE
void operator delete(void* p, size_t s) __THROW { tc_delete_sized(p, s); }
void operator delete[](void* p, size_t s) __THROW{ tc_deletearray_sized(p); }
#endif
extern "C" {
void* malloc(size_t s) __THROW { return tc_malloc(s); }
void free(void* p) __THROW { tc_free(p); }
void* realloc(void* p, size_t s) __THROW { return tc_realloc(p, s); }
void* calloc(size_t n, size_t s) __THROW { return tc_calloc(n, s); }
void cfree(void* p) __THROW { tc_cfree(p); }
void* memalign(size_t a, size_t s) __THROW { return tc_memalign(a, s); }
void* valloc(size_t s) __THROW { return tc_valloc(s); }
void* pvalloc(size_t s) __THROW { return tc_pvalloc(s); }
int posix_memalign(void** r, size_t a, size_t s) __THROW {
return tc_posix_memalign(r, a, s);
}
void malloc_stats(void) __THROW { tc_malloc_stats(); }
int mallopt(int cmd, int v) __THROW { return tc_mallopt(cmd, v); }
#ifdef HAVE_STRUCT_MALLINFO
struct mallinfo mallinfo(void) __THROW { return tc_mallinfo(); }
#endif
size_t malloc_size(void* p) __THROW { return tc_malloc_size(p); }
size_t malloc_usable_size(void* p) __THROW { return tc_malloc_size(p); }
} // extern "C"
// No need to do anything at tcmalloc-registration time: we do it all
// via overriding weak symbols (at link time).
static void ReplaceSystemAlloc() { }
#endif // TCMALLOC_LIBC_OVERRIDE_REDEFINE_H_
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